Window-fastener.



NOM/12,090. P ATENTED 0012.20.1903. W; D. WATSON. WINDOW PASTBNER.APPLIATIN IILBD 00T. 6, 1902.

' IO MODEL.

m: mums PETERS co, Pna'rauma. wAsNlNmoN, nv C meets with sufficientresistance to start the l Which- UNITED STATES v Patented October 20,1903.

WILLIAM D. WATSON, OF CHICAGO, ILLINOIS.

WINDow-FA'STENER.

SPECEFICATION forming part of Letters Patent No. 742,090, dated October20, 1903.

Application i'lled October 6, 1902.

T0 @ZJ whom t may concern.'

Be it known that I, WILLIAM D. WATSON, a citizen of the United States,residing at Ohicago, in the county of-Oook and State of Illinois7 haveinvented certain new andv useful Improvements in Window-Fasteners, ofwhich the following is a specification.

This invention relates to fasteners or latches for swinging windows andthe like, and is more particularly designed as an improvement upon thefastener set forth in my prior Letters Patent of the United States, No.654,371, granted July 24, .1900.

In the operation of the fastener set forth in the above-mentionedLetters Patent it has been discovered that inasmuch as the very firstmovement of the locking-lever starts the window away from. the casingthe slot provided in the latter for the reception of the locking-boltmust be considerably larger than is necessary for locking purposes inorder to prevent the binding of the bolt against the front of the slotduring such initial swinging movement of the window. Thisdifticulty isavoided in the present improvement by providing a striking-plate on thewindow-casing which will yield or spring inwardly when the locking-leveris first pulled, and will thus permit the locking-bolt to be entirelyWithdrawn from the slot in the casing before the lever window.

The invention consists in the matters thus and hereinafter set forth,and particularly pointed out in the appended claim, and will be fullyunderstood from the following description of the accompanying drawings,in

Figure l is a sectional side elevation of a swinging window withfastener constructed in accordance with my invention. Fig. 2 is anenlarged detail view. Fig. 3 is a horizontal sectional detail throughthe spring striking-plate on line 3 3 of Fig. 2. y In said drawings, 1designates the windowsash, and 2 the window-casing, which is built intothe Window-openin g provided in the wall of the building to receive thesash. The lat-v ter is herein shown as comprising a tubular metallicframe within which the glass 3 is suitably secured and. through thesides 4 of which plates 5 are passed to pivotally supseriti No. 126,028.(No maar) port the sash within the casing, these pivotbolts being solocated that the weight of the sash tends toswing it closed.

As in my former patent, the fastener F itself comprises an oscillatorylever 6, which is .pivoted at 7 between the lugs 8 of a clip 9,

that is rigidly secured to the upper edge of the sash by rivets 10 orthe like. This lever 6 thus swings in a plane at right angles to thesash and the sash-pivots and is provided with an upwardly-projectingcontact end 11, arranged to strike a plate on the window-casing as thewindow approaches its closed position, and with an upwardly-projectinglooking-bolt 12, which locks the window when lever that a pull upon thecord will tend to swing the lever upon its pivot, so as to retract thelocking-bolt from the slot or socket 13, and, as herein shown, this cordis fastened to the extremity 16 of the lever on the same Vside of thepivot as the bolt 12 and at such a distance from the pivot as to afforda conveniently great leverage for" retracting the bolt and forcing thewindow open.

In the present improvement the contact end 11 of the leverdoes notstrike directly against the c'asing, but against a yieldingstriking-plate P, which is. riveted or otherwise suitably secured to thecasing at a point where the end 11 of thelever will come in contact.with it. As herein shown, this plate consists of a base 17 and ayielding front 18, which is adapted to slide within the base, but isnormally held within the base by anges 18. To keep the front platenormally projected and yet enable it to yield under the contact ofthelever 6, springs 19 are applied between the front plate and base in anysuitable manner. As herein shown, these springs are of coiled wire andare inclosed within telescoping tubular guides 20, which preventldisplacement either of the springs or plate. By thus mounting the frontplate between the iianges carried by the base-plate IOO and employingtelescopic guides inclosing the actuating-springs it Will be observedthat the front plate will be prevented from tilting or binding in itsmovements, irrespective of the point at which the end 11 of the leverstrikes it. This construction therefore is especially advantageous Whenused in connection With my form of locking-lever.

In the operation of the device thus described the swinging of the Windowto its closed position will bring the locking-bolt of the level' beneaththe ledge 14E of the casing before its end 11 strikes the contact-plateP, which latter will then yield to permit the window to swing closed andthe locking-bolt to arrive opposite the slot or socket 13, into which itwill then be forced by the pressure of the springs 19 of thestrikingplate. Any direct pressure upon the Window will then bepositively resisted by the locking-bolt; but when a pull is exerted uponthe cord 15 the resultant swinging of the lever upon its pivot willfirst compress the striking-plate until the bolt is released from itssocket, as shown in dotted lines, Fig. 2, and will then exert itsleverage to force the window open.

It Will be observed that the spring strikingplate is attached to thewindow-frame above and out of the path ot' the sash and also that theplate is flat on its striking-face in order that should the sash sag orthe plate be set slightly inaccurately the striking end 11 of the leverwill when it comes in contact with "Maceo it strike it squarely and notWith a glancing blow.

I claim as my invention y In combination With a Window-casing and sashpivoted upon horizontal pivots, ot' a locking device consisting of alever pivotally mounted on the upper end ot' the sash and provided Witha contact end extending above the pivotal point and also with an upwardprojecting bolt adapted to engage the Window-casing, a pull-cord or thelike attached to the lever, and a resilient buffer device attached tothe Window casing coincidently with the contact end of the lever so asto receive the impact of the same When the sash is closed, saidresilient device consisting of a iianged base-piece adapted forattachment to the window-casing, a front plate having a flatstriking-face and provided with flanges 18 at its opposite edgesengaging and having a sliding connection with the flanges on thebase-plate, coil-springs interposed between said plates, and telescopictubular guides in closing said springs, for the purposes set forth.

In testimony that I claim the foregoing as myinvention I my signature,in presence of tWo subscribing Witnesses, this 27th day of September, A.D. 1902.

WILLIAM D. vWATSON.

Witnesses:

HENRY W. CARTER, K. A. COSTELLO.

